1 files changed, 137 insertions, 0 deletions
diff --git a/samples/nv-control-info.c b/samples/nv-control-info.c
new file mode 100644
index 0000000..c8e9957
--- /dev/null
+++ b/samples/nv-control-info.c
@@ -0,0 +1,137 @@
+/*
+ * nvidia-settings: A tool for configuring the NVIDIA X driver on Unix
+ * and Linux systems.
+ *
+ * Copyright (C) 2004 NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of Version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See Version 2
+ * of the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the:
+ *
+ *           Free Software Foundation, Inc.
+ *           59 Temple Place - Suite 330
+ *           Boston, MA 02111-1307, USA
+ *
+ */
+
+/*
+ * nv-control-info.c - trivial sample NV-CONTROL client that
+ * demonstrates how to determine if the NV-CONTROL extension is
+ * present.
+ */
+
+#include <stdio.h>
+
+#include <X11/Xlib.h>
+
+#include "NVCtrl.h"
+#include "NVCtrlLib.h"
+
+int main(void)
+{
+    Display *dpy;
+    Bool ret;
+    int event_base, error_base, major, minor, screens, i;
+    char *str;
+        
+    /*
+     * open a connection to the X server indicated by the DISPLAY
+     * environment variable
+     */
+    
+    dpy = XOpenDisplay(NULL);
+    if (!dpy) {
+        fprintf(stderr, "Cannot open display '%s'.\n", XDisplayName(NULL));
+        return 1;
+    }
+    
+    /*
+     * check if the NV-CONTROL X extension is present on this X server
+     */
+
+    ret = XNVCTRLQueryExtension(dpy, &event_base, &error_base);
+    if (ret != True) {
+        fprintf(stderr, "The NV-CONTROL X extension does not exist on '%s'.\n",
+                XDisplayName(NULL));
+        return 1;
+    }
+
+    /*
+     * query the major and minor extension version
+     */
+
+    ret = XNVCTRLQueryVersion(dpy, &major, &minor);
+    if (ret != True) {
+        fprintf(stderr, "The NV-CONTROL X extension does not exist on '%s'.\n",
+                XDisplayName(NULL));
+        return 1;
+    }
+
+    /*
+     * print statistics thus far
+     */
+
+    printf("NV-CONTROL X extension present\n");
+    printf("  version        : %d.%d\n", major, minor);
+    printf("  event base     : %d\n", event_base);
+    printf("  error base     : %d\n", error_base);
+    
+    /*
+     * loop over each screen, and determine if each screen is
+     * controlled by the NVIDIA X driver (and thus supports the
+     * NV-CONTROL X extension); then, query the string attributes on
+     * the screen.
+     */
+
+    screens = ScreenCount(dpy);
+    for (i = 0; i < screens; i++) {
+        if (XNVCTRLIsNvScreen(dpy, i)) {
+            printf("Screen %d supports the NV-CONTROL X extension\n", i);
+
+            ret = XNVCTRLQueryStringAttribute(dpy, i,
+                                              0, /* XXX not curently used */
+                                              NV_CTRL_STRING_PRODUCT_NAME,
+                                              &str);
+            if (ret) {
+                printf("  GPU            : %s\n", str);
+                XFree(str);
+            }
+            
+            ret = XNVCTRLQueryStringAttribute(dpy, i,
+                                              0, /* XXX not curently used */
+                                              NV_CTRL_STRING_VBIOS_VERSION,
+                                              &str);
+            
+            if (ret) {
+                printf("  VideoBIOS      : %s\n", str);
+                XFree(str);
+            }
+
+            ret = XNVCTRLQueryStringAttribute(dpy, i,
+                                              0, /* XXX not curently used */
+                                              NV_CTRL_STRING_NVIDIA_DRIVER_VERSION,
+                                              &str);
+
+            if (ret) {
+                printf("  Driver version : %s\n", str);
+                XFree(str);
+            }
+        }
+    }
+    
+    /*
+     * close the display connection
+     */
+
+    XCloseDisplay(dpy);
+
+    return 0;
+}